229L
GENERATING LIGAND BINDING SITES IN T4 LYSOZYME USING DEFICIENCY-CREATING SUBSTITUTIONS
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | CRYSTALS GROWN IN HANGING DROPS AT 4 DEGREES C. PROTEIN 10-20 MG/ML IN A BUFFER CONTAINING 25 MM HEPES PH 7.5 WAS DILUTED 1/2 WITH A WELL SOLUTION CONTAINING 0.1 M NACL, 0.1 M KPO4,20% W/V PEG 3350,PH 7.1, 0.25 M GUAD-HCL (LIGAND)., pH 7.0, vapor diffusion - hanging drop, temperature 277K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.79 | 55.86 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 60.6 | α = 90 |
b = 60.6 | β = 90 |
c = 97.5 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 298 | AREA DETECTOR | XUONG-HAMLIN MULTIWIRE | GRAPHITE MONOCHROMATOR | 1993-07-20 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 1.8 | 10 | 92 | 0.033 | 18659 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.8 | 0.2 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | DIFFERENCE FOURIER | CYS-FREE WILD TYPE LYSOZYME | 1.8 | 30 | 18659 | 18659 | 92 | 0.16 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_angle_deg | 2.1 |
t_nbd | 0.051 |
t_bond_d | 0.014 |
t_gen_planes | 0.013 |
t_trig_c_planes | 0.008 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1286 |
Nucleic Acid Atoms | |
Solvent Atoms | 131 |
Heterogen Atoms | 6 |
Software
Software | |
---|---|
Software Name | Purpose |
TNT | refinement |
SDMS | data reduction |
SDMS | data scaling |
TNT | phasing |